Özlem AYDIN, Levent BAYINDIRLI, Nevzat ARTIK

Havuçların Soyulmasının Matematiksel Analizi (İngilizce)

Bu çalışmada, Beypazarı havuçlarının kabukları, kimyasal yöntem ve buharla soyma yöntemleriyle soyulmuştur. NaOH çözeltisinin konsantrasyonu, sıcaklığı ve daldırma süresinin etkileri araştırılmıştır. Kimyasal yöntemle kabuk soymada optimum süre-sıcaklık-konsantrasyon ilişkileri matematiksel olarak analiz edilmiştir. Deneyler, NaOH konsantrasyonu olarak 2.5, 5.0, 7.5 ve 10.0 g NaOH/kg, sıcaklık olarak 57, 67, 77 ve 87 °C’lerde, %98’den daha fazla soyulma elde edilene kadar uygulanmıştır. 57 °C’de NaOH konsantrasyonu 2.5 g NaOH/kg olan çözelti haricinde diğer sıcaklık ve konsantrasyonlarda tam soyulma gerçekleşmiştir. Optimum soyulma koşulları, 77 °C’de 7.5 g NaOH / kg çözelti konsantrasyonu ve 10.5 dakika daldırma süresi olarak belirlenmiştir. Buharla soyma yönteminde ise doymuş buhar basıncı 130.7 kPa ve sıcaklığı 107 °C olarak uygulanmıştır. Tam soyulma 8.5 dakikada gerçekleşmiştir.

Anahtar Kelimeler:

havuç, kimyasal yöntemle kabuk soyma, buharla kabuk soyma, matematiksel analiz

Mathematical Analysis of Peeling of Carrots (in English)

In this study, carrots of Beypazarı variety were chemically and steam peeled. Effects of temperature, concentration of NaOH solutions and immersion time on lye peeling of carrots were studied. The optimum time-temperature-concentration relations of lye peeling of carrots were analyzed mathematically. Experiments were carried out for NaOH solutions of 2.5, 5.0, 7.5 and 10.0 g NaOH / kg at 57, 67, 77 and 87 °C for various immersion times, until more than 98 % peeling was achieved. Complete peeling was achieved for all concentrations and temperatures except 2.5 g NaOH / kg at 57°C. Treatment with 7.5 g NaOH / kg at 77 °C for 10.5 minutes was found to be optimum to peel the carrots. In steam peeling, saturated steam of 130.7 kPa and 107 °C was used. Complete peeling was achieved at 8.5 minutes. In steam peeling, complete peeling was achieved at 8.5 minutes.

Keywords:

Carrot, chemical peeling, steam peeling, mathematical analysis　,

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